JP2997754B2 - Anti-vibration device for traffic slabs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration isolator for a traffic slab such as a railway track or an automobile road.

[0002]

2. Description of the Related Art Generally, houses, condominiums, and apartments constructed near sources of traffic vibration such as railways and motorways.
Buildings such as hotels, theaters and hospitals, and structures such as precision machine factories and computer facilities need to take measures to prevent damage from traffic vibration.

[0003] As a conventional anti-vibration measure for railways,
Laying ballasts between the sleepers and the track slabs,
Rubber was inserted between the rail and the sleeper, rubber was inserted between the sleeper and the track slab, rubber was inserted between the track slab and the support structure, etc. .

[0004] However, the above-mentioned method using a ballast has a high anti-vibration effect, but is troublesome and uneconomical in maintenance, and the method using the rubber of (1) has an inadequate anti-vibration effect. In order to exhibit the vibration damping effect of the above, it is necessary to use a soft rubber or a rubber that can be further deformed by increasing the thickness, but in this case,
There were problems such as settling of rubber.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has as its object the purpose of preventing minute vibrations in the vertical direction, that is, traffic vibrations. An object of the present invention is to provide a vibration isolator for a traffic slab that can exhibit a sufficient vibration isolating effect.

[0006]

According to the present invention, there is provided a vibration isolator for a traffic road slab having a laminated structure having a characteristic of being hard in the vertical direction and soft in the horizontal direction between the traffic slab and the support structure. It is characterized in that rubber and a metal spring which is soft in the vertical direction and hard in the horizontal direction are combined in series and interposed. The traffic slab is a track slab or a road slab. The support structure is a substructure or an apartment, a theater, a hospital, a precision machine factory, a computer facility, or other building.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a track slab, on which a rail 2 is laid. The rail 2 on the track slab 1 may be a single track, a double track, a double track, or the like. Further, the track slab 1 may be replaced with a road slab of an automobile road. Reference numeral 3 denotes a substructure as a support structure of the present invention, and a vibration isolator A is interposed between the substructure and the track slab 1.

The vibration isolator A is mainly composed of a laminated rubber 4 and a metal spring 5 as shown in FIG. The laminated rubber 4 has a structure in which thin rubber plates and iron plates are alternately stacked, and has a characteristic that it is hard in the vertical direction and soft in the horizontal direction. On the other hand, the metal spring 5 has a characteristic that it is soft in the vertical direction and hard in the horizontal direction, such as a coil spring or a disc spring, and thus exhibits damping characteristics against minute vibrations in the vertical direction such as train vibration. .

The anti-vibration device of the present embodiment is constructed as described above, so that when a train runs on the rail 2, a minute vibration acts in the vertical direction. Since the metal spring 5 has a soft characteristic in the vertical direction, it has a function of damping the minute vibration in the vertical direction, and transmission to the track slab 1 is prevented. As a result, the minute vibration of the train is not transmitted to the substructure 3.

[0010] As shown in FIG.
In the case of a box culvert 6 on which a residential building 7 such as an apartment is built,
Residents will not be bothered by the slight vibrations of trains and cars running directly under the city. It should be noted that the slight lack of the rigidity in the horizontal direction is stopped by a conventional method such as using a laminated rubber in the horizontal direction.

[0011]

【The invention's effect】

1) Since a traffic track slab such as a railway track slab or a road slab such as an automobile road is supported by a vibration isolator in which laminated rubber and a metal spring are combined in series, a support structure such as a foundation structure or a building is supported. The effect of vibration on the vehicle can be reduced. 2) Since a metal spring is combined with the laminated rubber, a vibration isolator having a small natural frequency can be obtained. 3) As a support structure for a railway or a motorway, a building for a residence, a theater, a hospital, or a building for a precision machine factory or a computer facility can be constructed.

[Brief description of the drawings]

FIG. 1 is a sectional view of a track on which a vibration isolator of the present invention is set.

FIG. 2 is an enlarged view of an embodiment of the vibration isolator according to the present invention.

FIG. 3 is a sectional view of an application example of the present invention.

[Explanation of symbols]

 Reference Signs List 1 track slab 2 rail 3 substructure 4 laminated rubber 5 metal spring 6 culvert box 7 building A anti-vibration device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-250101 (JP, A) JP-B-1-18308 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) E01B 1/00 E01B 19/00 E01C 3/00 E01C 5/06-5/08

Claims (5)

(57) [Claims] 1. A laminated rubber having characteristics of being hard in the vertical direction and soft in the horizontal direction, between the traffic slab and the support structure, and being soft in the vertical direction and hard in the horizontal direction. A vibration isolator for a traffic slab, wherein metal springs having characteristics are combined in series and interposed. 2. The vibration isolator for a traffic slab according to claim 1, wherein the traffic slab is a track slab. 3. The vibration isolator for a traffic slab according to claim 1, wherein the traffic slab is a road slab. 4. The vibration isolator for a traffic slab according to claim 1, wherein the support structure is a foundation structure. 5. The vibration isolator for a traffic slab according to claim 1, wherein the support structure is a building.